package com.atguigu.rabbitmq.one;

import com.rabbitmq.client.*;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

/**
 * ClassName: Consumer
 * Description: 消费者-接收消息
 * Date: 2023/04/27 PM 2:41:47
 * <p>
 * project: atguigu-rabbitmq
 * package: com.atguigu.rabbitmq.one
 * email: 1085844536@qq.com
 * version:
 *
 * @author WangGuojian
 */
public class Consumer {

    /**
     * 队列名称
     */
    public static final String QUEUE_NAME = "hello";

    /**
     * 接受消息
     */
    public static void main(String[] args) throws IOException, TimeoutException {
        // 创建连接工厂
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("192.168.0.20");
        factory.setUsername("admin");
        factory.setPassword("admin");
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();

        // 声明 接收消息
        DeliverCallback deliverCallback = (consumerTag, message) -> {
            System.out.println(new String(message.getBody()));
        };
        // 取消消息时的回调
        CancelCallback cancelCallback = consumerTag -> System.out.println("消息消费被中断");

        /**
         * 消费者消费消息
         * 1.消费哪个队列
         * 2.消费成功之后是否要自动应答， true 代表自动应答， false 代表手动应答
         * 3.消费者未成功消费的回调
         * 4.消费者取消消费的回调
         */
        channel.basicConsume(QUEUE_NAME, true, deliverCallback, cancelCallback);
    }

}
